How will that aim be achieved?The menbers each try in any way to obtain and maintain one or more Sections as complete as possible.As soon as a plant fails, it must be replaced by one of the other members.Every type of plant must be kept in several places.Every member tries to take cuttings from his plants, especially from the rare species and distribute them in the Group. By keeping the list of plants that everyone has up to date, any gap is quickly detected and measures can be taken in time.